[gecode-users] High memory consumption during execution

[Christian Schulte]

Another hint: if your model uses the standard Gecode search engines, you can
inquire how much memory is occupied by the nodes of the search tree. If
there is a huge difference between what is reported by the search engine and
what is reported by your operating system, you program just has a memory
leak.

Then, how deep is the search tree? How many variables and propagators does
your problem have?

In the end: we could say much more if you provided a little bit more detail
about what you observe. The information that your program uses a lot of
memory is not that helpful in itself.

Christian

--
Christian Schulte, www.ict.kth.se/~cschulte/

-----Original Message-----
From: users-bounces at gecode.org [mailto:users-bounces at gecode.org] On Behalf
Of Mikael Zayenz Lagerkvist
Sent: Tuesday, November 10, 2009 8:56 AM
To: benoit
Cc: users at gecode.org
Subject: Re: [gecode-users] High memory consumption during execution

Hi,

Please consult Section 9.2 in Modeling with Gecode.

Note that that will not help if your problem is due to a memory leak  
in your program.

Cheers,
Mikael

On 9 nov 2009, at 23.17, benoit wrote:

> Hello,
>
> In a previous message
> (http://www.ps.uni-sb.de/pipermail/gecode-users/2009-November/003287.html 
> ),
> I faced memory problems with the element constraint during the
> definition of my space. The concept of shared array implemented in the
> new version of Gecode (3.2.1) solved it.
>
> However, a high memory consumption problem now occurs during  
> execution.
> I suppose that it is also related to the element constraint (but I'm  
> not
> completely sure). I tried to isolate a simple piece of code but failed
> to reproduce the problem. I also tried to identify the problem in  
> debug
> mode but, at some point, I can not have access to the code (I'm using
> Visual Studio Express 2008). With the few information provided, it may
> be difficult to solve my problem. Is there a "classical" mistake that
> could explain this behavior ?
>
> I can provide my code if needed but it is not very "digeste".
>
> Thank you in advance for your help.
>
> Benoît
>
> _______________________________________________
> Gecode users mailing list
> users at gecode.org
> https://www.gecode.org/mailman/listinfo/gecode-users


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